How do you write 100×10 in exponential form?
The Correct Answer and Explanation is:
To express the product (100 \times 10) in exponential form, we start by breaking down each number into its prime factorization.
- Understanding the Prime Factorization:
- The number (100) can be factored into primes as follows:
[
100 = 10 \times 10 = (10^1 \times 10^1) = 10^2
] - The number (10) is already in its prime form, which is:
[
10 = 10^1
]
- Combining the Expressions:
- Now, we can rewrite (100 \times 10) using the exponential forms we derived:
[
100 \times 10 = 10^2 \times 10^1
]
- Applying the Exponential Rule:
- When multiplying numbers in exponential form that have the same base, we can use the rule of exponents:
[
a^m \times a^n = a^{m+n}
] - Here, our base (a) is (10), and (m) and (n) correspond to the exponents (2) and (1), respectively:
[
10^2 \times 10^1 = 10^{2+1} = 10^3
]
- Final Result:
- Therefore, the expression (100 \times 10) can be simplified in exponential form as:
[
100 \times 10 = 10^3
]
- Understanding Exponential Notation:
- Exponential notation is a way of expressing numbers that are products of the same base multiplied by itself a certain number of times. In this case, (10^3) means (10) multiplied by itself three times:
[
10^3 = 10 \times 10 \times 10 = 1000
] - This notation is not only useful for simplifying calculations but also for representing large numbers in a more compact form.
Thus, (100 \times 10) in exponential form is (10^3). This illustrates the efficiency and power of using exponents in mathematics, making it easier to handle calculations involving large numbers or repeated multiplications.