2 x 2 x 3 x 5 x 7 = 420
It is: 7
420 = 22 x 3 x 5 x 7
Find one factor, divide by it to get the other factor. Continue separating each of the factors into smaller factors, until you only have prime numbers. For example, 840 = 2 x 420. Now continue finding smaller factors for 420.
420 has four prime factors: 2,3,5,7
The prime factors of 420 are: 2, 3, 5, 72 x 2 x 3 x 5 x 7 = 420
There are 82 prime numbers between 1 and 420.
The greatest common factor can be calculated by identifying the common prime factors and multiplying them together. The prime factors of 280 are 2, 2, 2, 5, and 7. The prime factors of 420 are 2, 2, 3, 5, and 7. The common prime factors are 2, 2, 5, and 7, so the greatest common factor is 2 x 2 x 5 x 7 = 140. The GCF is 140.
Exactly as it is because 31 is a prime number
Its factor are 1 and 19 because it is a prime number
420 has 5 prime factors, four of which are different prime numbers. Prime factors of 420 are 2 x 2 x 5 x 3 x 7.
420 has four prime factors. Prime factors don't usually travel in pairs.
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