To find all the divisors of the number 242,676:
- 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 242,676:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
242,676 = 22 × 34 × 7 × 107
242,676 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) × (4 + 1) × (1 + 1) × (1 + 1) = 3 × 5 × 2 × 2 = 60
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 242,676
- 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
prime factor =
7
composite factor = 3
2 =
9
composite factor = 2
2 × 3 =
12
composite factor = 2 × 7 =
14
composite factor = 2 × 3
2 =
18
composite factor = 3 × 7 =
21
composite factor = 3
3 =
27
composite factor = 2
2 × 7 =
28
composite factor = 2
2 × 3
2 =
36
composite factor = 2 × 3 × 7 =
42
composite factor = 2 × 3
3 =
54
composite factor = 3
2 × 7 =
63
composite factor = 3
4 =
81
composite factor = 2
2 × 3 × 7 =
84
prime factor =
107
composite factor = 2
2 × 3
3 =
108
composite factor = 2 × 3
2 × 7 =
126
composite factor = 2 × 3
4 =
162
composite factor = 3
3 × 7 =
189
composite factor = 2 × 107 =
214
composite factor = 2
2 × 3
2 × 7 =
252
composite factor = 3 × 107 =
321
composite factor = 2
2 × 3
4 =
324
composite factor = 2 × 3
3 × 7 =
378
composite factor = 2
2 × 107 =
428
This list continues below...
... This list continues from above
composite factor = 3
4 × 7 =
567
composite factor = 2 × 3 × 107 =
642
composite factor = 7 × 107 =
749
composite factor = 2
2 × 3
3 × 7 =
756
composite factor = 3
2 × 107 =
963
composite factor = 2 × 3
4 × 7 =
1,134
composite factor = 2
2 × 3 × 107 =
1,284
composite factor = 2 × 7 × 107 =
1,498
composite factor = 2 × 3
2 × 107 =
1,926
composite factor = 3 × 7 × 107 =
2,247
composite factor = 2
2 × 3
4 × 7 =
2,268
composite factor = 3
3 × 107 =
2,889
composite factor = 2
2 × 7 × 107 =
2,996
composite factor = 2
2 × 3
2 × 107 =
3,852
composite factor = 2 × 3 × 7 × 107 =
4,494
composite factor = 2 × 3
3 × 107 =
5,778
composite factor = 3
2 × 7 × 107 =
6,741
composite factor = 3
4 × 107 =
8,667
composite factor = 2
2 × 3 × 7 × 107 =
8,988
composite factor = 2
2 × 3
3 × 107 =
11,556
composite factor = 2 × 3
2 × 7 × 107 =
13,482
composite factor = 2 × 3
4 × 107 =
17,334
composite factor = 3
3 × 7 × 107 =
20,223
composite factor = 2
2 × 3
2 × 7 × 107 =
26,964
composite factor = 2
2 × 3
4 × 107 =
34,668
composite factor = 2 × 3
3 × 7 × 107 =
40,446
composite factor = 3
4 × 7 × 107 =
60,669
composite factor = 2
2 × 3
3 × 7 × 107 =
80,892
composite factor = 2 × 3
4 × 7 × 107 =
121,338
composite factor = 2
2 × 3
4 × 7 × 107 =
242,676
60 factors (divisors)
What times what is 242,676?
What number multiplied by what number equals 242,676?
All the combinations of any two natural numbers whose product equals 242,676.
1 × 242,676 = 242,676
2 × 121,338 = 242,676
3 × 80,892 = 242,676
4 × 60,669 = 242,676
6 × 40,446 = 242,676
7 × 34,668 = 242,676
9 × 26,964 = 242,676
12 × 20,223 = 242,676
14 × 17,334 = 242,676
18 × 13,482 = 242,676
21 × 11,556 = 242,676
27 × 8,988 = 242,676
28 × 8,667 = 242,676
36 × 6,741 = 242,676
42 × 5,778 = 242,676
54 × 4,494 = 242,676
63 × 3,852 = 242,676
81 × 2,996 = 242,676
84 × 2,889 = 242,676
107 × 2,268 = 242,676
108 × 2,247 = 242,676
126 × 1,926 = 242,676
162 × 1,498 = 242,676
189 × 1,284 = 242,676
214 × 1,134 = 242,676
252 × 963 = 242,676
321 × 756 = 242,676
324 × 749 = 242,676
378 × 642 = 242,676
428 × 567 = 242,676
30 unique multiplications The final answer:
(scroll down)