To find all the divisors of the number 207,792:
- 1. Decompose the number into prime factors.
- See how you can find out how many factors (divisors) the number has, without actually calculating them.
- 2. Multiply the prime factors in all their unique combinations, that yield different results.
1. Carry out the prime factorization of the number 207,792:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
207,792 = 24 × 33 × 13 × 37
207,792 is not a prime number but a composite one.
- Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
- Examples of prime numbers: 2 (factors 1, 2), 3 (factors 1, 3), 5 (factors 1, 5), 7 (factors 1, 7), 11 (factors 1, 11), 13 (factors 1, 13), ...
- Composite number: a natural number that has at least one factor other than 1 and itself. So it is neither a prime number nor 1.
- Examples of composite numbers: 4 (it has 3 factors: 1, 2, 4), 6 (it has 4 factors: 1, 2, 3, 6), 8 (it has 4 factors: 1, 2, 4, 8), 9 (it has 3 factors: 1, 3, 9), 10 (it has 4 factors: 1, 2, 5, 10), 12 (it has 6 factors: 1, 2, 3, 4, 6, 12), ...
How to count the number of factors of a number?
Without actually finding the factors
- If a number N is prime factorized as:
N = am × bk × cz
where a, b, c are the prime factors and m, k, z are their exponents, natural numbers, .... - ...
- Then the number of factors of the number N can be calculated as:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In our case, the number of factors is calculated as:
- n = (4 + 1) × (3 + 1) × (1 + 1) × (1 + 1) = 5 × 4 × 2 × 2 = 80
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 207,792
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also consider the exponents of these prime factors.
- Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.
All the factors (divisors) are listed below - in ascending order
The list of factors (divisors):
Numbers other than 1 that are not prime factors are composite factors (divisors).
neither prime nor composite =
1
prime factor =
2
prime factor =
3
composite factor = 2
2 =
4
composite factor = 2 × 3 =
6
composite factor = 2
3 =
8
composite factor = 3
2 =
9
composite factor = 2
2 × 3 =
12
prime factor =
13
composite factor = 2
4 =
16
composite factor = 2 × 3
2 =
18
composite factor = 2
3 × 3 =
24
composite factor = 2 × 13 =
26
composite factor = 3
3 =
27
composite factor = 2
2 × 3
2 =
36
prime factor =
37
composite factor = 3 × 13 =
39
composite factor = 2
4 × 3 =
48
composite factor = 2
2 × 13 =
52
composite factor = 2 × 3
3 =
54
composite factor = 2
3 × 3
2 =
72
composite factor = 2 × 37 =
74
composite factor = 2 × 3 × 13 =
78
composite factor = 2
3 × 13 =
104
composite factor = 2
2 × 3
3 =
108
composite factor = 3 × 37 =
111
composite factor = 3
2 × 13 =
117
composite factor = 2
4 × 3
2 =
144
composite factor = 2
2 × 37 =
148
composite factor = 2
2 × 3 × 13 =
156
composite factor = 2
4 × 13 =
208
composite factor = 2
3 × 3
3 =
216
composite factor = 2 × 3 × 37 =
222
composite factor = 2 × 3
2 × 13 =
234
composite factor = 2
3 × 37 =
296
composite factor = 2
3 × 3 × 13 =
312
composite factor = 3
2 × 37 =
333
composite factor = 3
3 × 13 =
351
composite factor = 2
4 × 3
3 =
432
composite factor = 2
2 × 3 × 37 =
444
This list continues below...
... This list continues from above
composite factor = 2
2 × 3
2 × 13 =
468
composite factor = 13 × 37 =
481
composite factor = 2
4 × 37 =
592
composite factor = 2
4 × 3 × 13 =
624
composite factor = 2 × 3
2 × 37 =
666
composite factor = 2 × 3
3 × 13 =
702
composite factor = 2
3 × 3 × 37 =
888
composite factor = 2
3 × 3
2 × 13 =
936
composite factor = 2 × 13 × 37 =
962
composite factor = 3
3 × 37 =
999
composite factor = 2
2 × 3
2 × 37 =
1,332
composite factor = 2
2 × 3
3 × 13 =
1,404
composite factor = 3 × 13 × 37 =
1,443
composite factor = 2
4 × 3 × 37 =
1,776
composite factor = 2
4 × 3
2 × 13 =
1,872
composite factor = 2
2 × 13 × 37 =
1,924
composite factor = 2 × 3
3 × 37 =
1,998
composite factor = 2
3 × 3
2 × 37 =
2,664
composite factor = 2
3 × 3
3 × 13 =
2,808
composite factor = 2 × 3 × 13 × 37 =
2,886
composite factor = 2
3 × 13 × 37 =
3,848
composite factor = 2
2 × 3
3 × 37 =
3,996
composite factor = 3
2 × 13 × 37 =
4,329
composite factor = 2
4 × 3
2 × 37 =
5,328
composite factor = 2
4 × 3
3 × 13 =
5,616
composite factor = 2
2 × 3 × 13 × 37 =
5,772
composite factor = 2
4 × 13 × 37 =
7,696
composite factor = 2
3 × 3
3 × 37 =
7,992
composite factor = 2 × 3
2 × 13 × 37 =
8,658
composite factor = 2
3 × 3 × 13 × 37 =
11,544
composite factor = 3
3 × 13 × 37 =
12,987
composite factor = 2
4 × 3
3 × 37 =
15,984
composite factor = 2
2 × 3
2 × 13 × 37 =
17,316
composite factor = 2
4 × 3 × 13 × 37 =
23,088
composite factor = 2 × 3
3 × 13 × 37 =
25,974
composite factor = 2
3 × 3
2 × 13 × 37 =
34,632
composite factor = 2
2 × 3
3 × 13 × 37 =
51,948
composite factor = 2
4 × 3
2 × 13 × 37 =
69,264
composite factor = 2
3 × 3
3 × 13 × 37 =
103,896
composite factor = 2
4 × 3
3 × 13 × 37 =
207,792
80 factors (divisors)
What times what is 207,792?
What number multiplied by what number equals 207,792?
All the combinations of any two natural numbers whose product equals 207,792.
1 × 207,792 = 207,792
2 × 103,896 = 207,792
3 × 69,264 = 207,792
4 × 51,948 = 207,792
6 × 34,632 = 207,792
8 × 25,974 = 207,792
9 × 23,088 = 207,792
12 × 17,316 = 207,792
13 × 15,984 = 207,792
16 × 12,987 = 207,792
18 × 11,544 = 207,792
24 × 8,658 = 207,792
26 × 7,992 = 207,792
27 × 7,696 = 207,792
36 × 5,772 = 207,792
37 × 5,616 = 207,792
39 × 5,328 = 207,792
48 × 4,329 = 207,792
52 × 3,996 = 207,792
54 × 3,848 = 207,792
72 × 2,886 = 207,792
74 × 2,808 = 207,792
78 × 2,664 = 207,792
104 × 1,998 = 207,792
108 × 1,924 = 207,792
111 × 1,872 = 207,792
117 × 1,776 = 207,792
144 × 1,443 = 207,792
148 × 1,404 = 207,792
156 × 1,332 = 207,792
208 × 999 = 207,792
216 × 962 = 207,792
222 × 936 = 207,792
234 × 888 = 207,792
296 × 702 = 207,792
312 × 666 = 207,792
333 × 624 = 207,792
351 × 592 = 207,792
432 × 481 = 207,792
444 × 468 = 207,792
40 unique multiplications The final answer:
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