To find all the divisors of the number 94,860:
- 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 94,860:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
94,860 = 22 × 32 × 5 × 17 × 31
94,860 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 = (2 + 1) × (2 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 3 × 3 × 2 × 2 × 2 = 72
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 94,860
- 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
prime factor =
5
composite factor = 2 × 3 =
6
composite factor = 3
2 =
9
composite factor = 2 × 5 =
10
composite factor = 2
2 × 3 =
12
composite factor = 3 × 5 =
15
prime factor =
17
composite factor = 2 × 3
2 =
18
composite factor = 2
2 × 5 =
20
composite factor = 2 × 3 × 5 =
30
prime factor =
31
composite factor = 2 × 17 =
34
composite factor = 2
2 × 3
2 =
36
composite factor = 3
2 × 5 =
45
composite factor = 3 × 17 =
51
composite factor = 2
2 × 3 × 5 =
60
composite factor = 2 × 31 =
62
composite factor = 2
2 × 17 =
68
composite factor = 5 × 17 =
85
composite factor = 2 × 3
2 × 5 =
90
composite factor = 3 × 31 =
93
composite factor = 2 × 3 × 17 =
102
composite factor = 2
2 × 31 =
124
composite factor = 3
2 × 17 =
153
composite factor = 5 × 31 =
155
composite factor = 2 × 5 × 17 =
170
composite factor = 2
2 × 3
2 × 5 =
180
composite factor = 2 × 3 × 31 =
186
composite factor = 2
2 × 3 × 17 =
204
composite factor = 3 × 5 × 17 =
255
composite factor = 3
2 × 31 =
279
composite factor = 2 × 3
2 × 17 =
306
This list continues below...
... This list continues from above
composite factor = 2 × 5 × 31 =
310
composite factor = 2
2 × 5 × 17 =
340
composite factor = 2
2 × 3 × 31 =
372
composite factor = 3 × 5 × 31 =
465
composite factor = 2 × 3 × 5 × 17 =
510
composite factor = 17 × 31 =
527
composite factor = 2 × 3
2 × 31 =
558
composite factor = 2
2 × 3
2 × 17 =
612
composite factor = 2
2 × 5 × 31 =
620
composite factor = 3
2 × 5 × 17 =
765
composite factor = 2 × 3 × 5 × 31 =
930
composite factor = 2
2 × 3 × 5 × 17 =
1,020
composite factor = 2 × 17 × 31 =
1,054
composite factor = 2
2 × 3
2 × 31 =
1,116
composite factor = 3
2 × 5 × 31 =
1,395
composite factor = 2 × 3
2 × 5 × 17 =
1,530
composite factor = 3 × 17 × 31 =
1,581
composite factor = 2
2 × 3 × 5 × 31 =
1,860
composite factor = 2
2 × 17 × 31 =
2,108
composite factor = 5 × 17 × 31 =
2,635
composite factor = 2 × 3
2 × 5 × 31 =
2,790
composite factor = 2
2 × 3
2 × 5 × 17 =
3,060
composite factor = 2 × 3 × 17 × 31 =
3,162
composite factor = 3
2 × 17 × 31 =
4,743
composite factor = 2 × 5 × 17 × 31 =
5,270
composite factor = 2
2 × 3
2 × 5 × 31 =
5,580
composite factor = 2
2 × 3 × 17 × 31 =
6,324
composite factor = 3 × 5 × 17 × 31 =
7,905
composite factor = 2 × 3
2 × 17 × 31 =
9,486
composite factor = 2
2 × 5 × 17 × 31 =
10,540
composite factor = 2 × 3 × 5 × 17 × 31 =
15,810
composite factor = 2
2 × 3
2 × 17 × 31 =
18,972
composite factor = 3
2 × 5 × 17 × 31 =
23,715
composite factor = 2
2 × 3 × 5 × 17 × 31 =
31,620
composite factor = 2 × 3
2 × 5 × 17 × 31 =
47,430
composite factor = 2
2 × 3
2 × 5 × 17 × 31 =
94,860
72 factors (divisors)
What times what is 94,860?
What number multiplied by what number equals 94,860?
All the combinations of any two natural numbers whose product equals 94,860.
1 × 94,860 = 94,860
2 × 47,430 = 94,860
3 × 31,620 = 94,860
4 × 23,715 = 94,860
5 × 18,972 = 94,860
6 × 15,810 = 94,860
9 × 10,540 = 94,860
10 × 9,486 = 94,860
12 × 7,905 = 94,860
15 × 6,324 = 94,860
17 × 5,580 = 94,860
18 × 5,270 = 94,860
20 × 4,743 = 94,860
30 × 3,162 = 94,860
31 × 3,060 = 94,860
34 × 2,790 = 94,860
36 × 2,635 = 94,860
45 × 2,108 = 94,860
51 × 1,860 = 94,860
60 × 1,581 = 94,860
62 × 1,530 = 94,860
68 × 1,395 = 94,860
85 × 1,116 = 94,860
90 × 1,054 = 94,860
93 × 1,020 = 94,860
102 × 930 = 94,860
124 × 765 = 94,860
153 × 620 = 94,860
155 × 612 = 94,860
170 × 558 = 94,860
180 × 527 = 94,860
186 × 510 = 94,860
204 × 465 = 94,860
255 × 372 = 94,860
279 × 340 = 94,860
306 × 310 = 94,860
36 unique multiplications The final answer:
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