To find all the divisors of the number 48,762:
- 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 48,762:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
48,762 = 2 × 34 × 7 × 43
48,762 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 = (1 + 1) × (4 + 1) × (1 + 1) × (1 + 1) = 2 × 5 × 2 × 2 = 40
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 48,762
- 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 × 3 =
6
prime factor =
7
composite factor = 3
2 =
9
composite factor = 2 × 7 =
14
composite factor = 2 × 3
2 =
18
composite factor = 3 × 7 =
21
composite factor = 3
3 =
27
composite factor = 2 × 3 × 7 =
42
prime factor =
43
composite factor = 2 × 3
3 =
54
composite factor = 3
2 × 7 =
63
composite factor = 3
4 =
81
composite factor = 2 × 43 =
86
composite factor = 2 × 3
2 × 7 =
126
composite factor = 3 × 43 =
129
composite factor = 2 × 3
4 =
162
composite factor = 3
3 × 7 =
189
This list continues below...
... This list continues from above
composite factor = 2 × 3 × 43 =
258
composite factor = 7 × 43 =
301
composite factor = 2 × 3
3 × 7 =
378
composite factor = 3
2 × 43 =
387
composite factor = 3
4 × 7 =
567
composite factor = 2 × 7 × 43 =
602
composite factor = 2 × 3
2 × 43 =
774
composite factor = 3 × 7 × 43 =
903
composite factor = 2 × 3
4 × 7 =
1,134
composite factor = 3
3 × 43 =
1,161
composite factor = 2 × 3 × 7 × 43 =
1,806
composite factor = 2 × 3
3 × 43 =
2,322
composite factor = 3
2 × 7 × 43 =
2,709
composite factor = 3
4 × 43 =
3,483
composite factor = 2 × 3
2 × 7 × 43 =
5,418
composite factor = 2 × 3
4 × 43 =
6,966
composite factor = 3
3 × 7 × 43 =
8,127
composite factor = 2 × 3
3 × 7 × 43 =
16,254
composite factor = 3
4 × 7 × 43 =
24,381
composite factor = 2 × 3
4 × 7 × 43 =
48,762
40 factors (divisors)
What times what is 48,762?
What number multiplied by what number equals 48,762?
All the combinations of any two natural numbers whose product equals 48,762.
1 × 48,762 = 48,762
2 × 24,381 = 48,762
3 × 16,254 = 48,762
6 × 8,127 = 48,762
7 × 6,966 = 48,762
9 × 5,418 = 48,762
14 × 3,483 = 48,762
18 × 2,709 = 48,762
21 × 2,322 = 48,762
27 × 1,806 = 48,762
42 × 1,161 = 48,762
43 × 1,134 = 48,762
54 × 903 = 48,762
63 × 774 = 48,762
81 × 602 = 48,762
86 × 567 = 48,762
126 × 387 = 48,762
129 × 378 = 48,762
162 × 301 = 48,762
189 × 258 = 48,762
20 unique multiplications The final answer:
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