19 · 19 = 192
Explanation: The exponent 2 (squared) means "multiply 19 by itself 2 times": 19 × 19 = 19².
Also, a single 19 can be written as 191, because any number to the first power equals itself: 19 = 19¹.
Learn how to write 19 · 19 using exponents (19²) and how to express a single 19 as an exponent (19¹). Simple explanation of repeated multiplication and exponent notation.
19 · 19 = 192
Explanation: The exponent 2 (squared) means "multiply 19 by itself 2 times": 19 × 19 = 19².
Also, a single 19 can be written as 191, because any number to the first power equals itself: 19 = 19¹.