Q: What are the prime factors of the number 442,000,420?

 A: 2, 5, 19, 1163159

Why are those the prime factors of the number 442,000,420?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 442,000,420

442,000,420
Factor Arrows
2221,000,210
Factor Arrows
2110,500,105
Factor Arrows
522,100,021
Factor Arrows
191,163,159

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 5, 19, 1163159

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 19 x 1,163,159 = 442,000,420

This can also be written as 22 x 51 x 191 x 1,163,1591 = 442,000,420

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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