According to 15*15=225, 25*25=625, 35*35=1225, 45*45=2025, it can be calculated how much 65*65=
根据15*15=225，25*25=625，35*35=1225，45*45=2025可以推算出65*65=多少
<gadget id="calculator">65 * 65</gadget>
<output>4_225</output>

<result>4_225</result>