Q: What are the prime factors of the number 22,201,200?

 A: 2, 3, 5, 7, 881

Why are those the prime factors of the number 22,201,200?

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 22,201,200

22,201,200
Factor Arrows
211,100,600
Factor Arrows
25,550,300
Factor Arrows
22,775,150
Factor Arrows
21,387,575
Factor Arrows
3462,525
Factor Arrows
3154,175
Factor Arrows
530,835
Factor Arrows
56,167
Factor Arrows
7881

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, 3, 5, 7, 881

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 5 x 5 x 7 x 881 = 22,201,200

This can also be written as 24 x 32 x 52 x 71 x 8811 = 22,201,200

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


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