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Learn how to find the factors, pair factors and prime factors of 40 by different methods. See the table of factors of 40, the division method and the prime factorization of 40 with examples and FAQs.
- 3 min
- The factors of 40 are 1, 2, 4, 5, 8, 10, 20 and 40.
- The prime factorization of 40 is 2 × 2 × 2 × 5 or 2 3 × 5.
- The positive pair factors of 40 are (1, 40), (2, 20), (4, 10), and (5, 8).
- The negative pair factors of 40 are (-1, -40), (-2, -20), (-4, -10), and (-5, -8).
- No, 16 is not a factor of 40. If 40 is divided by 16, it leaves a remainder, and hence 16 is not a factor of 40.
40 is a natural number with various mathematical, scientific, religious and cultural significance. Learn about its properties, divisors, Euler's lucky numbers, atomic number, Fahrenheit-Celsius temperature, and more.
Convert 40 US dollars to Indian rupees with the real mid-market rate. See how the exchange rate has changed over the past day, week or month and compare prices for sending money abroad.
Learn how to write and spell 40 in words as Forty in English. Find out the place value, properties and facts of 40 as a number.
- 40 in words is written as Forty.
- 400 is written as Four hundred in words.
- 40 is not an odd number but an even number. It is completely divisible by 2. 40/2 = 20
- 40 is not a perfect square number since its square root is not a whole number.
- False, 40 is not a prime number but a composite number since it has more than two factors.
Jun 21, 2023 · Learn the correct spelling of the number 40 and why fourty is a mistake. Find out the origin, history, and examples of forty and its related forms.
Learn the history and usage of the word forty, the only accepted spelling of the number 40 in English. Find out why it lacks a u and how to avoid the common misspelling fourty.
Learn how to write numbers from 1 to 40 in words with rules, examples, and a printable chart. Find the value of expressions involving numbers in words 1 to 40.
