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Q: Find the prime factor of 420?

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It is: 7

The Prime Factors of 420 are 2, 3, 5, 7.The Prime Factors of 480 are 2, 3, 5.

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.

2 x 2 x 3 x 5 x 7 = 420

2 x 2 x 3 x 5 x 7 = 420

420 = 2^2 x 3 x 5 x 7

You do a factor rainbow to find a prime factorization. You compare prime factorizations to find a greatest common factor.

420 2x7x5x2x3

420 has four prime factors: 2,3,5,7

There are 82 prime numbers between 1 and 420.

The prime factorization of 420 is: 2 × 2 × 3 × 5 × 7

Whatever you use, 59 is a prime number. Its only prime factor is itself.

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